Car pit form



C. C. BUEBKE CAR PIT FORM Jan. 4, V1949.

3 Sheets-Sheet 1 Filed Oct. 29, 1946 l /NME/x/ TDR 07m4 CQ SufB/f5.

/4 T'TUF/vis/ Jan. 4, 1949. c. c. Bur-:BKE 2,458,055

CAR PIT FORM Filed Oct. '29, 1946 '5 Sheets-Sheet 2 ffg. 3 .I

Z g l 731 l@ o o o ol i To o J@ l Jan. 4, 19,49. C, C, BUEBKE 2,458,055 GAR Pm FORM y Filed oct. 29, 194e s sheets-sheet s Patented Jan. 4, 1L949 UNITED `STATES PATENT OFFICE 5 y l I 2,458,055 y CAR rl'rFoRM j arlC. Buebkauortland, reg". "Appicaiin'otobe 29, 1946, serial No. 106,315

This invention relates generally to automobile lifts of the hydraulic type and particularly those employing two vertical pistons.

The main object of this invention is to construct a car pit form whereby a car pit can be easily made and the forms removed therefrom with the least amount of eiort and with the expenditure of the minimum amount of time.

The secondl object is to eliminate entirely the waste of wood which commonly accompanies the making of car pit forms of this type.

I accomplish these and otherobjects in the manner set forth in the followingvspeciflcation as illustrated in the accompanying drawing, in which:

Fig. 1 is a perspective view of the form showing portions broken away in section.

Fig. 2 is a horizontal section taken along the line 2-2 in Fig. 1. l i

Fig. 3 is a transverse section taken alongthe line 3-3 in Fig. 1.

b Fig. 4 is a perspective view of one of the angle ars.

Fig. 5 is a perspective view of one of the toggle almS.

Fig. 6 is a section taken along the line 6-6 in Fig. 1.

Fig. 7 is a perspective view of one of the form sides.

Fig. 8 is a fragmentary sectional view showing Ian extension for a truck lift pit.

Fig. 9 is a perspective view of the extension used for truck lift pits as shown in Fig. 8.

Referring in detail to the drawing, there is shown a pair of rectangular form plates I having the inturned bottoms II formed thereon which form footings for the form plates I0. Inside of the form plates I Il are welded the vertical ribs I2 of angle bars, whose lower ends I3 are secured to the bottoms II. The ribs I2 are provided with inclined slots I4 near the bottom and near the middle of the height thereof. Resting on the bottom II are the loose stiffening bars I which bear against the inner edges of the ribs I2 when the form is set.

The upper end IB of each rib I2 is offset to form a slot I'I which receives the upper stiiening bars I8.

There are also provided the end members I9 having the inturned sides formed thereon which match with the form plates I0.

In order to move the form plates I0 out to their proper spacing for the purpose of giving the right dimension to the form, I have provided a form expanding and holding mechanism which consists of the upright tie bars 2|, across the upper end of which is mounted a` lock brace 22 which is in the form of an angle bar, to which are secured by means of `rivets or bolts 23 the perforated bars 24, the ends of which are united to the upper ends I6 of the ribs I2 by means of the removable bolts 25 which pass through the holes 26 in the ends IE of the ribs I2.

Near the middle and at thebottom of the tie bar 2| are the brace bars 21 and 28, to which are attached the extensions 29 by means of the bolts 29A. To each lower member 29 is secured an angle bar 30 which is adapted to engage the interior of the stiffening bar I5. l l

In the form of the device shown in Figs. B and 9, there is provided a T bar 3I which extends along the sides of the form while the extension sides 32 bear against preferably provided with a removable end gate 33. `In the, form of the device shown in Fig. 9, the extension 32 is provided merely to afford addi` tional height as is necessary when the pit is being constructed for truck lifts.

The operation of the device is as follows: Assuming that an opening 34 has been excavated large enough to receive the setup form as shown in Fig. 1 and to leave enough space around same to receive the aggregate which will go to make up the completed wall 35, the form plates I0 are now lowered into the opening and held in alignment by means of the stiffening bars I5 and I8. The ends I9 are also put into place and the members 2I are lowered into place as shown in Fig. 3, in which the bolts 36 are made to enter the slots I4 and the tie bar 2I forced downwardly, causing the ribs I2 to move away from each other. It will be noted that the angle bars 30 on the extensions 29 of the brace bar 28 engage the inner sides of the stiifening bars I5, whereas the outermost holes 3'I in the perforated bars 24 register with the holes 26 in the ribs I2 and they both receive the bolts 38 which are provided with the wing nuts 39, thereby locking the form securely into shape. A reversal of this procedure will naturally make it possible to withdraw the forms.

It will be noted in Fig. 5 that the members 24 are provided with a plurality of bolts 23 which makes possible the moving of the members to a pre-determined dimension.

In the form of the device shown in Fig. 9, instead of employing the stiffening bars I8, I prefer to employ the frame T bars 3|, to which are welded the side plates 32. The sides 32 and the end members 33 are united by the bolts 40, which pass through the ears 4I on the side plates 32 the `outside thereof and are where they are held by means of the wing nuts 42.

I am, of course, aware that numerous forms of car pit forms have been constructed in the past. I, therefore, do not Claim such devices broadly but I do intend to cover such forms and modications thereof as fall fairly Within the appendant claims.

I claim: v 4

l. A can pit form having in combination a'fplue rality of" sections each of which section consists of a pair of opposite side form plates having inwardly turned bottoms, each of saidform plates` having secured thereto a pair of vertical ribsfonew leg of each rib being normal to the side plate,

said leg having inclined notches formed thereiny near the bottom and y the upper end of said leg having a slot formed therein between same and its respectivewforcm, plate, said slot constituting a pocket foi` one leg oiwa s-.tieningr angle ban. closures-` for theff space between:A thefende-of-` the outermostA 'side forms,- andbraces-for said form vconsistingofra' plurality olf-toggle linksfdispesedibetweenfsaid ribs-and-havingT bolts: thereon: adapted. to-` engage:v said? in-lf clinedinotches; a verticaltierban connecting; the toggle joint4 of, said togglelink'sfanda brace'bar mounted across th'ea'upperyendzoiisaidtie bar having means for; attachingsame to the upper end-tof tfhenribsstogether-` vvithstiiening bars along the Lippen `andflower,` endsroi' saidfribsadaptedftofhold theA panels hr longitudinalfaiignmenc 2: Imafdevice. of, the class: described the: combination of a pain ouprig-ht iormplates having: inturnedrbottom iedgesg a: stilifenin'g han of angular cross: sectionu loosely placed upon.y each inturned:

edgeieach of: said` form,v plates having` afpairroi upright ribsvsecuredzthereto: having; inclined: slots farmed:` in the? lower: end of: saidi rigs'- andsin i the middle ofr the height thereoff andhaving` a; hole formediim thelower end1of said 1 ribs and` in; the

middle orv the leI1gthJtlnereof.,y

4 links mounted between the lowermost inclined slots having bolts mounted therein adapted to engage said slots, said toggle links having angle bars mounted thereunder, adapted to engage said stifenng bars when said toggle is moved toward a straight line position, and a tie bar connecting the joints of said toggle links for the purpose of actuating same.

3. In a device of the lclass described the combination'of a` pair. of upright form platesv having intnrned bottomedges, astifening barof angular cross section loosely placed upon yeach int-urned edge, each of said form plates having a ,f pain: of upright ribs secured thereto having inclined slots formed in the lower end of said ribs andlin'thefmddle of the height thereof andhavn ingv aholeformedthrough the upper end of each rib, togglelr'lks mounted between the lowermost `r inclined .slots having bolts mounted therein adapted to engage saidslots, toggle links having angleA barsmountedt thereunder adapted. to engage said .stiieningbarsfwhen moved toward a straight line position,-a tie bar connectingk the.togg1efjoints ofE saidy toggle bars tor,- the.. purpose: cit-.actuating same;y and` abrace memben between; the.- upper sides:- consisting of:K ai horizontal. barv ofV adjustable length.

CARL dC.v BUEBKE.'

i REFERENCES. CITED.

'linea following references are of' record' in the the of?` this patent:`

UNITED STATES PA'I'ENTS said. togglel is ends: ofi sa-id formY 

